IER and IERC rivet nuts are fasteners designed to provide a metric thread in sheet metal and profiles using a single-sided installation method. Their hexagonal geometry and reduced head offer a specific configuration within the rivet nut range, making them ideal for applications requiring a lower head profile than conventional versions.
The IER / IERC range is available in various metric sizes and sheet thicknesses, allowing for the selection of the appropriate part based on material and assembly requirements.
IER and IERC Rivet Nuts
The IER and IERC models share a hexagonal geometry with a reduced head. The main difference is that the IERC model is the closed-end (blind) version.
- IER: Hexagonal rivet nut with reduced head.
- IERC: Closed-end hexagonal rivet nut with reduced head.
This configuration enables the creation of a threaded fixing point in sheet metal and profiles through installation from a single side.
Features of IER / IERC nuts
- Hexagonal geometry.
- Reduced head.
- IERC version with a closed-end body.
- Metric thread.
- Single-sided installation.
- Available for various sheet metal thicknesses.
- Manufactured from Trivalent Chromium (Cr III) zinc-plated steel.
Materials and finishes
For the IER / IERC family, the catalog specifies the following material:
- Trivalent Chromium (Cr III) zinc-plated steel.
The general catalog identifies the steel grade as C1008. The IER / IERC family is specifically listed within the Trivalent Chromium (Cr III) zinc-plated steel section. :contentReference[oaicite:0]{index=0}
Available sizes
IER – Hexagonal with reduced head
| Thread | Reference | Thickness T (mm) |
|---|---|---|
| M4 | BFACIERM04C / BFACIERM04L | 0.5–2.5 / 2.5–5.0 |
| M5 | BFACIERM05C / BFACIERM05L | 0.5–3.0 / 3.0–5.0 |
| M6 | BFACIERM06C / BFACIERM06L | 1.0–3.5 / 3.5–6.0 |
| M8 | BFACIERM08C / BFACIERM08L | 1.0–4.0 / 4.0–6.0 |
| M10 | BFACIERM10C12 / BFACIERM10L12 | 1.0–3.5 / 3.5–6.0 |
| M10 | BFACIERM10C13 / BFACIERM10L13 | 1.0–4.0 |
| M12 | BFACIERM12C15 | 1.0–3.5 |
| M12 | BFACIERM12C16 | 1.0–4.0 |
IERC – Blind reduced head hexagon
| Thread | Reference | Thickness T (mm) |
|---|---|---|
| M4 | BFACIERC M04C | 0.5–2.5 |
| M5 | BFACIERC M05C | 0.5–3.0 |
| M6 | BFACIERC M06C | 0.5–3.5 |
| M8 | BFACIERC M08C | 1.0–4.0 |
| M10 | BFACIERC M10C13 | 1.0–4.5 |
IER and IERC dimensional data appear on the corresponding catalog sheet …to reduced-head hexagonal rivet nuts. :contentReference[oaicite:1]{index=1}
Applications
IER and IERC rivet nuts provide a solution for applications requiring a threaded connection on sheet metal or profiles where access to the rear side of the workpiece is limited or impossible.
Their hexagonal geometry offers a distinct configuration compared to cylindrical nuts, while the reduced head allows this family to be used when a lower-profile setup is required.
The IERC version also features a closed-end body.
Advantages of reduced-head hexagonal rivet nuts
The key feature of this family is the combination of hexagonal geometry and a reduced head.. This configuration allows for a rivet nut with a low-profile head while maintaining a hexagonal external geometry.
Single-sided assembly facilitates installation on sheet metal, profiles, and structures where there is no access to the rear side. The availability of various thread sizes and grip ranges allows for the selection of the appropriate part for each application.
Mechanical Data
The catalog includes various mechanical tests for the rivet nuts, such as **axial load, ultimate tensile load, tightening torque, and shear strength**. :contentReference[oaicite:2]{index=2}
For low-profile head configurations, the ultimate load table indicates values ranging from **1 Nm for M3 to 50 Nm for M12** for both steel and stainless steel. Shear strength reaches up to **6,500 N for M12**, while axial load capacity reaches up to **34,000 N for M12** (steel/stainless steel). :contentReference[oaicite:3]{index=3} :contentReference[oaicite:4]{index=4}
Do you need an IER or IERC rivet nut?
To correctly select a rivet nut, it is important to know the **thread size**, **sheet thickness**, **material**, and the required head configuration.
At Bearfix, we offer various rivet nut solutions for industrial applications. If you are unsure which part you need, contact our team, and we will help you identify the right configuration.
Browse the Bearfix range of rivet nuts and find the right part for your application.